| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hologram recording device capable of speeding up a seek operation when reproducing a hologram recording medium as fast as possible. <P>SOLUTION: The hologram recording device (A) functions to modulate signal light S by a spatial optical modulator 5, to irradiate a hologram recording medium (B) with the light, to irradiate the hologram recording medium (B) with reference light R overlapping the signal light S on the medium, and to change and control angles of the reference light R with respect to the signal light S by each stack as a unit irradiation region so as to multiple record holograms corresponding to the respective angles of the reference light in a page unit. The device is equipped with a spatial optical modulator control means 20 which controls the spatial optical modulator 5 so as to record a stack address of the stack corresponding to the page data when a plurality of page data as different holograms by pages are multiple recorded in a given stack. <P>COPYRIGHT: (C)2007,JPO&INPIT |
